Add: app.kubernetes.io/name label to the Deployment object

[DanTulovsky]

Describe the solution you'd like

Add: app.kubernetes.io/name label to the Deployment object. It's value should be the same as 'app'.

Anything else you would like to add:

Or, perhaps better, allow adding arbitrary labels to the Deployment (in the same way that podLabels is implemented).

Environment:

• Gatekeeper version: all
• Kubernetes version: (use kubectl version): all